To get this deal you must do a subscribe & Save purchase. You can cancel the subscribe & save after you get your order if you wish, see link below to cancel. Subscribe & Save bypasses the add-on requirement, you do NOT need a $25 purchase when doing subscribe & save.. even if the page says so

CLICK HEREand click the circle next to subscribe & Save and then click subscribe now

You can get as many 3 packs as you want, just do a separate order for each one or change the quantity before subscribing

Subscribe and save can be cancelled anytime after the order ships, no further charges, just click here to cancel. The first order (this order) will always be at the price you purchased it for. The second order and all orders after that will be at the price it is currently selling for on Amazon. If you feel that price is too high then you can cancel after the first order